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1. What is the password of Haikang VCR?
Hikvision DVR, NVR and other devices initial user name: admin, initial password: 12345
Hikvision IPC IP Camera Initial Username: admin, Initial Password: 12345
Hikvision remote monitoring software initial user name: admin, the initial password set by the user, if you forget the password can only uninstall the software reinstall.
2. What is the password of Dahua Video Recorder?
User name: admin Password: admin
Username:888888 Password:888888
User name:666666 Password:666666
3. How does Haikang's default password change?
Main Menu - System Configuration - User Configuration - Change Password
4. How does the network camera calculate the storage space?
Number of cameras * Image bit rate * Storage time/8
5, how to connect the network camera alarm?
Cameras that require alarm input, "Alarm in" on the camera's tail
6. How to connect the webcam audio?
A camera that requires audio support. The word "A in" or "Audio in" is attached to the camera's tail.
7, how to add Hai Kang recorder?
1. Automatically add, NVR scan automatically, you can display all online cameras, select "Add all"; 2, manually add, select the appropriate channel, point "edit" input camera related information, "OK"
8, how to change the IP camera Hai Kang?
1. Open the camera's management interface from the computer browser, find the network options, fill in the address that needs to be changed; 2. From the NVR, after searching the camera, click "Edit" to input the changed address.
9, how to change the ball machine address code?
Network domes generally do not need to change the address code. Simulation ball machine address code changes in two ways: 1, hard switch changes, the ball machine movement has a corresponding dial switch, usually binary, toggle switch, transferred to the required address; 2, software changes , Through the preset position, call out the dome machine menu, there are address code modification options, enter the modification can.
10. How does the ball machine change the baud rate?
Same as modifying address code
11. How far can a POE switch be transmitted?
In theory, the POE power supply distance is not less than the signal transmission distance of the same network cable.
12, centralized DC power supply how to calculate power?
The general camera is DC12V1A power supply, for the camera with infrared fill light, need to make a certain amount of current redundancy, select the DC12V2A power supply, to prevent the camera power supply is insufficient when switching to infrared mode.
13. How far can the SYV75-3 video cable be transmitted?
In theory, the SYV75-3 video cable can transmit 300 meters. Few people actually do this in the actual project. Use 75-3 within 100 meters.
14. How long can the SYV75-5 video cable transmit?
In theory, the SYV75-5 video cable can transmit 500 meters. Few people actually do this in actual projects. Use 75-5 meters within 200 meters.
15, hard disk recorder format hard disk is very slow, what reason?
This should be a problem with the hard disk, you can try to replace the hard disk
16. What are the reasons for the old dropped network camera?
1. Unstable power supply 2. Poor network connection and poor network cable
17, network cameras, Kardon serious, what reason?
The video stream of the camera is too large and the bandwidth of the switch and NVR is insufficient
18, how to set the decoder on the wall?
Enter the decoder address through the computer browser, enter the decoder's management interface to set, or have been set by the IVMS4200 client software.
19, how to determine the number of millimeters?
The general situation is based on the distance required by the site divided by 2 and divided by 1000, to obtain the lens mm, and then according to the desired camera angle, adjust the millimeter.
20. Where is the focus camera adjusted?
There is “FOCUS†“ZOOM†on the side or tail of the camera. Adjust it with a screwdriver.
21, how to upgrade video recorder software?
Main Menu - System Maintenance - Version Upgrade - Select upgrade packages provided by Hai Kang
22. How did Haikang IP address change on NVR?
After scanning the camera on the NVR, select the camera - edit - modify the IP address
23, how to select the type of disk array?
Calculate the storage capacity required for all front-end camera images first, divide the capacity of a single hard disk, obtain the number of disks, add the number of management disks required for RAID, and the number of hot spare disks to obtain the number of array disks.
24, video recorder how to set the IP address?
Main Menu - System Configuration - Network Configuration - Basic Configuration - Fill in the IPV4 Address, Subnet Mask, and Gateway.
25. What is the control of the network dome?
NVR, computer client, network keyboard, can control the network dome.
What is 26,485?
485 Communication Interface A hardware description of the communication interface. It requires only two communication lines, that is, data transmission between two or more devices. This data transmission connection is a half-duplex communication method. A device can only send data or receive data. The 485 used for security monitoring generally refers to the PTZ control interface. After setting the protocol and speed between the control device and the controlled device, control operations can be performed.
27. How does the 485 line of the video recorder connect with the dome camera?
The 485 interface of the video recorder has TX+ and TX-, which can receive the “+†and “-†of the 485 of the dome camera respectively.
28, how hard disk formatting through video recorder?
Main Menu - Hard Disk Management - Select the hard disk to be formatted - Initialize
29. What is wide dynamic?
Wide dynamic technology is a technique used by the camera to see the characteristics of the image under very strong contrast of optical fibers. When a high-luminance area such as a strong light source (daylight, lamps, or reflection, etc.) and an area with a relatively low relative brightness such as shadow and backlight are simultaneously present in the image, a bright area appears in the image output from the camera, and the overexposure becomes White, and dark areas become black due to underexposure, seriously affecting image quality. The camera's performance in the brightest and dark areas in the same scene is limited. This limitation is usually referred to as the "dynamic range."
30. What is a video transmitter?
Apparatus for photoelectrically converting an image of an analog camera
31. What is a fiber optic transceiver?
Equipment for photoelectric conversion of signals in network systems.
32, how to configure the optical fiber according to the actual situation?
According to the total number of cores and transmission modes required by the system optical transmission equipment, the type of optical fiber and the number of cores are selected. The number of fibers is determined based on the distance to be transmitted.
33. How far is the fiber transceiver configured?
After exceeding the cable signal transmission distance (generally 100 meters), it is considered to be transmitted by optical fiber.
34. Can the camera remove the demodulator by itself when the lens is loose?
Yes, open the camera's hood to adjust
35, how to debug the remote video recorder?
1. In the main menu, enter System Settings - Network Settings - DDNS - Enable DDNS Check - Select the appropriate domain name service station in the DDNS type - enter the username and password registered on this site - OK. 2. Enter the router where the recorder accesses the Internet, find the “Forwarding Rules†option, and add the forwarding port. The port of Haikang is 80, 8000, and then save it.
36, how to set fluorite cloud?
There are 3 steps to set up a fluorite cloud: 1. The Haikang device that supports the fluorite cloud has a two-dimensional code on its body. Scanning the QR code with a mobile phone will pop up a fluorspar APP and download and install the APP.
2. After the installation, open the Fluorite Cloud video, register an account with the mobile phone number, and log in.
3. Click “+†in the upper right corner to pop up the Add Device window and scan the QR code on the camera body. The setting was successful.
37. How to set the port of Haikang remote access router?
Hikvision's factory default port is HTTP:80, service port number: 8000
38, analog recorder can not find the mouse is what reason?
1. If it is a mouse that comes with Hikvision, press the middle scroll wheel a few times in succession. If not, change the USB interface 2. Change the main output port in the system settings.
What is the video memory of the 39,300 million cameras for one hour?
3 million video cameras occupy a space of about 3G for 1 hour video recording. According to the stream size set by the camera, the required hard disk storage space will be different.
What is the video memory of the 40, 2 million cameras for one hour?
2 million video camera 1 hour video storage space is about 2G, depending on the size of the video stream set by the camera, the required hard disk storage space will be different
41. What is the transmission line for the analog camera?
The general situation is to use coaxial cable, specifications: SYV75-5, SYV75-3, some special occasions, but also useful for twisted pair transmitters, multiplexers and so on.
42, the transmission distance of the network cable can reach the farthest?
Theoretically, it can reach 150 meters. In practice, it is limited to 100 meters.
43. Under what kind of circumstances do you choose fiber optic transmission?
When the electrical signal can not meet the transmission distance, consider the use of optical fiber transmission
44, how to match the switch, video recorders and switches how to configure?
Number of cameras * Stream of cameras = required switch bandwidth. Switch bandwidth = nominal bandwidth * utilization, typically 50%.
45. How the Switch Calculates Power
The power of the switch is marked on the equipment nameplate and does not need to be calculated
46. ​​How to select the number of hard disks according to the recording time
First calculate the storage capacity required for all front-end camera images. Divide the capacity of a single hard disk to obtain the number of disks.
Does 47,300,000 access to the nominal 16-channel 2 million video recorder require half the number of access channels?
The number of network video recorder access channels = the total video recorder bandwidth ÷ camera code stream, the greater the code stream, the fewer the number of access routes, 3 megapixel camera theoretically greater than 2 million video camera stream 1/3
48, platform machine and decoder how to choose?
The platform integrated machine integrates the functions of decoding, management, and splicing into one device. The decoder is only for decoding and on-wall (splicing, screen segmentation), and can be selected according to the user's functional requirements.
49. How many people can you visit at the same time?
Up to 10 people can access at the same time
50, the role of streaming media server?
When a large number of client-side web browsers access the surveillance cameras, the average video recorder cannot withstand much network pressure. At this time, the streaming media server is required to forward and transfer the client's access pressure to the server.
51. Do I still need a video recorder when using a disk array?
The storage function of the disk array, where the data is stored, needs a storage server to manage it. In general, there is no need for a disk array with a disk array.
52, the difference between one machine and the movement?
The movement is an all-in-one machine without a shell. The one-piece machine can work independently and the movement cannot work independently. Need to receive the ball machine to work properly
53, the difference between LED lights and dot matrix lights?
The two lamps are essentially the same, and the dot matrix lamp has more power than the ordinary LED lamp and has a longer service life.
54. How to solve the problem if the camera is connected to a video recorder?
1. Physical network connection problem 2. The IP addresses of the camera and recorder are not in the same network segment, or the port and user name password are incorrect.
55, the difference between the dome and the cloud machine
The dome usually has no elevation angle or a small angle of elevation (up to 20 degrees). The PTZ camera can have an elevation of 90 degrees.
56, Haikang's analog DVR directly connected to the CVBS (BNC) why can not recognize the mouse?
System settings, change the main output port can be.
57. Can Haikang Network DVR support 960H encoding?
stand by
58. Does Hikvision support all the hard disk recorders to support fluorite cloud?
Currently all of Haikang's channel models support Fluorite Cloud. The project model does not support it temporarily.
59. What are the main differences between Haikang's analog video recorders and network hard disk recorders?
The video signal input by the analog video recorder is a BNC analog signal, which can be previewed directly and encoded. The network recorder is connected to the network camera network signal and displayed and recorded by the decoder.
60. Can Haikang's analog video recorder support an external Haikang keyboard?
Hai Kang analog video recorder can not directly connect the keyboard
61. Does Haikang network camera support POE? How to distinguish?
In the model number of the camera, the letter "D" on the back of the number is powered by DC, POE is not supported, and the letter "D" is not included.
, Support POE power supply
62, how to distinguish between network hard disk recorders with CVBS (BNC) output how to judge?
The following hardware interface on the host has CVBS OUT, indicating that the BNC output function is supported
63, network cameras sometimes can not switch day and night what is the reason?
Camera can not be switched to black and white, under normal circumstances is the illumination is not low enough, can not cut from black and white to color, the ambient light illumination is not bright enough, ambient light illumination just reached the critical value of the photosensitive resistor switching, there will be frequent switching phenomenon.
64, how to calculate the number of mixed video recorder access network and simulation?
There is no need to calculate the number of analog cameras, and the number of BNC input connectors on the recorder is the upper limit. The network camera can multiply the camera's pixel height by the number of cameras and be less than the network access bandwidth of the recorder. Disabling one analog signal can increase one network signal.
65. What does the NVR state indicate lack of resources?
The pixel rate of the IPC exceeds the upper limit of the decoding bandwidth of the camera, and the stream of the camera can be appropriately reduced.
66. What should I do if IPC is added and it is not online?
1. The IP address of the IPC is not in the same network segment as the NVR address
2. The network connection is not smooth. Check whether all 8 cores of the network cable are tested.
67, local preview no sound how to do?
1, first confirm the audio cable, pickup power cord connection is intact
2, the preview interface sound switch is turned on
68, how to select the camera lens mm?
The general situation is based on the distance required to irradiate the field divided by 2 and divided by 1000, to obtain the required lens is about millimeters, according to the required camera angle, the appropriate adjustment of the number of millimeters, the greater the camera angle, the smaller the lens .
69, IE can use the domain name to visit the device, the client can not it?
Can access
70. Why use the mobile client software to preview the image black screen?
1. The server is offline. 2. The client adds the wrong device. The IP address, port, user name, and password are incorrect.
71. What is the interference source of the moire image and how does it form an interference loop?
1. Poor contact of the elevator accompanying cable 2. When the elevator is running, there is strong electric interference in the elevator shaft.
72. What is the difference between four 6701HW and one 6704HW encoders?
The 6701HW is suitable for use in a relatively decentralized installation environment. The 6704HW is suitable for use in a more concentrated environment.
73, camera centralized power supply wiring?
The so-called centralized power supply means that all front-end equipment uses electricity and is provided uniformly from the back-end central control room. There are two kinds of situations: 1. Centralized power supply to the front end, the camera's power adapter is placed on the camera side. In this case, the power cable should be separated from the video signal cable, the power cable must be protected by the JDG pipe, and the centralized power supply must be provided. The DC power required by the camera comes to the front end, and the camera power adapter is placed in the back-end control room. In this case, the power line and the video line can share the same line. When the requirements are not strict, PVC pipe can be used. At the same time pay attention to the distance between the DC transmission distance and the wire diameter. The farther the transmission is, the larger the required wire diameter.
74, the analog lens mounted on the network camera can also display the screen, how to explain?
The analog lens can be used on a webcam, but the resolution is reduced. If the image quality is not high enough, it can be used.
75. The boiler room of a steelworks, most of which is between 80 and 150 degrees Celsius, sometimes reaches approximately 200 degrees. Explosion-proof equipment from Hai Kang can be solved?
Cannot be solved, need to use guard with temperature control
76, the role of the matrix?
1. Switch the image of any one camera to any monitor on the TV wall. 2. Control the front-end PTZ camera, turn it, zoom, etc.
77, VGA matrix can replace the decoder? If not, what are the differences?
The VGA matrix cannot replace the decoder. VGA matrix, just make a switch on the VGA signal on the big screen, does not have the network decoding function, the decoder in addition to the network decoding function, also has the VGA matrix switching function
78, how to debug the decoder
Enter the decoder address in the address bar of the computer's browser, enter the decoder's WEB management interface, or use the IVMS4200 client software, enter the debugging in the device management options
79, What is the difference between Hai Kang server and other servers?
Hardware configuration is not much different from other brand servers on the market, and software compatibility is better.
80, how to set 7X24 hour automatic video?
Click "Main Menu" - Video Configuration - Edit - Full Day Video - Copy - Select "All Weeks" - OK - OK - Copy - Select "All Channels" - OK, Exit
81, Hai Kang recorder can not boot?
1. Check whether the power cord is plugged in. 2. The switch on the power supply of the host is turned on. 3. The hard disk is faulty.
82, Hai Kang recorder can not record?
1. There is no video recording time and video type set in the video recording plan. 2. The hard disk is not set as a read-write disk in the system setting. 3. The video disk is not set to automatically cover the video. 4. Hard disk failure
83. What is the time difference for Hai Kang VCR?
1, the system time is not set, the camera stream is too large, the image time delay
84, Hai Kang recorder can not playback?
1, check the video plan in the video time, video type 2 hard disk failure
85, Hai Kang recorder does not recognize the hard disk?
1. Hard disk failure 2. Checked "Disk management" in SMART configuration before "Continue when disk evaluation failed."
86, Hai Kang video recorder to boot alarm
1. HDD error 2. Network disconnection, image loss 3, IP address conflict
87. How to realize wireless transmission in case of more partitions?
All wireless devices cannot penetrate multiple walls. In environments with multiple partitions, wireless transmission is not recommended.
88, two million and three million are the same storage space?
Theoretically different, 300W requires 50% more storage space than 200W. The pixel stream in the IPC can be adjusted. In the case of tight storage space, 300W and 200W can be used to lower the bit rate appropriately.
The 89- and 16-way network video recorders received 13 1.3 million POE hemispheres. Why special cards?
1, the switch bandwidth is not enough 2, the camera stream is set too large
90ã€Why does the analog elevator camera connect well sometimes sometimes?
The supply voltage is unstable and the power supply is insufficient when the elevator is running
91, a back-end computer, then also need a network keyboard? Can't control it with a computer keyboard?
From a functional point of view, a computer mouse can implement the functions of a network keyboard. However, the operation is not as convenient as the keyboard. The keyboard on the computer does not replace the network keyboard.
92, network dome can use analog keyboard control?
Can't control, simulation keyboard does not have decoding function.
93, how to choose a reasonable decoding device?
Select the resolution of the decoder, the number of decoding channels according to the camera resolution, and select the number of output ports of the decoder according to the number of large screens
94, camera can see normal long distance during the day?
The exposure distance of the camera, the size of the lens, the strength of the light, and the influence of the air condition cannot be generalized.
95, a cell phone can connect several cameras?
Fluorite software can only open one image at a time, IVMS4500 can open 4 images
96. After the camera is equipped with audio, is the storage space required for video recording much larger than without audio?
Adding audio to the image will take up storage space, but it will not be too large and it can be ignored
97, video recorder refresh search no camera IP?
The network connection is disconnected
98, monitor display without a monitor, want to use your own home desktop computer how to pick?
The RJ45 connector on the VCR is connected to the computer with a network cable and accesses the VCR image through the computer client software.
99, Dahua's video recorder, Haikang's camera, how to adjust?
When adding a device to a channel, the protocol selects Onvif to enable
100, video recorder does not recognize the mouse, how to debug?
If it is Hikang's own mouse, press the middle scroll wheel first, if not, change USB
101, infrared light gun how to turn off the infrared light?
1, enhance the illumination 2, disconnect the camera, disconnect the photoresistor (not recommended) 3, the network camera can turn off the infrared light from the settings
102. How is motion detection set?
Main Menu - Channel Management - Motion Detection - Start Motion Detection - Set Detection Sensitivity and Detection Range
103, Pickup connection?
The pickups on the market generally provide three wires, the power line + (mostly red) audio line + (most white) common ground G (mostly black), the power line "+" connect the power "+", audio "+" AUDIO IN for audio input to the camera, "-" for common ground G and "G" for audio input, and G for audio input
104, with audio camera pickup, the requirements of the recorder?
No requirements for video recorders
105, video surveillance room, you want to separate a part to another monitoring room, how to operate?
The analog system can distribute one signal to another monitoring room through the video distributor. The network system can be directly connected to the network and the user can open the desired image through the computer.
106, after the start of the video recorder is always issued a "drop" sound?
1, no hard disk or hard disk format 2 hard disk failure
107, how to pick up the simulated machine pickups, how to pick up?
The pickup system of the analog system needs to be connected to the video recorder (requires video recorder support)
108. Under what circumstances is the coaxial network transmission used?
Most of them were retrofitted in the old system, and customers had digital HD requirements, and the site could not be used to replace video cables with network cables.
109, NVR search no front-end equipment how is it?
1. The network cable is disconnected 2. The power supply of the front-end equipment
110. Does the camera that captures the license plate automatically save the photo?
The camera of the license plate capture device can be an ordinary camera. The recognition function is implemented on the host on the back end, and the photo is also saved on the host computer.
111, shooting match the lens, the lens is generally infrared?
Shooting single lens, no infrared
112. What is the code stream?
The image captured by the camera is processed by the encoding device to form a network signal that can be transmitted on the network and occupy a certain network bandwidth.
113, sub-stream and main stream is how is it?
The main stream is used for local video recording, and the substream is used for network preview. Dual stream design is to prevent the remote image from stalling
114, decoder solution NVR brand requirements and restrictions?
The best decoder and NVR are the same brand, different brands of equipment, as long as they support the ONVIF protocol can also be used together
115, disk array under what circumstances?
When large-capacity storage, NVR local disk can not meet the storage needs, you can consider using array storage
116, how to achieve remote storage?
As long as the network broadband can meet the needs of image transmission, remote monitoring client or centralized management platform software has the dome camera can operate within a few meters?
As long as the cable signal can reach the distance, the network keyboard can operate
118, according to the electronic screen device how to match?
The bandwidth dynamic function of the camera can be
119. In order to save hard disks, what are the consequences of lowering the camera frame rate?
Generally, it is not recommended to save the hard disk space by reducing the frame rate. Decreasing the frame rate will result in frame skipping during video playback, and the key is to lose the function of video capture.
120, video recorders synchronous playback, generally show how much better than the best?
Each model of video recorder, the number of video playback at the same time, there are differences, this should be determined according to the actual needs of the user, need to see the panorama, you can open more appropriate playback window, you need to zoom in to see the close-up, you can open less some.
121, choose elevator monitoring equipment, which should pay attention to?
Compact appearance, wide-angle lens
122, elevator hemisphere photosensitive resistance is very sensitive how to tune has been colored?
1. Increase the light intensity in the elevator 2. Cut off the light-sensitive resistor connection line in the camera (not recommended)
123, the difference between BNC, VGA, HDMI these interfaces
BNC is analog interface VGA digital SD interface HDMI is digital HD interface
124. When will the encoder be used? Is the encoder NVS?
The English name of the encoder: NET VIDEO SERVER (Network Video Server) is also called video encoder. Its role is to encode analog camera video signals into network signals. When an analog camera video signal needs to be connected to a network system, an encoder is needed
125. Is the encoder used in the elevator? What are the pros and cons?
The use of encoders in elevators is due to the fact that the accompanying cables in the elevator only have coaxial lines and no network cables. After the popularity of more economical and practical elevator cables in the market, it is recommended to consider using network cameras. The highest resolution of the encoder is WD1, which is far less than the pixels of the webcam.
126, video surveillance cameras and video capture card What is the relationship?
The signal collected by the video capture card is provided by the front-end analog camera, collected and coded by the capture card, and provided with the digital set number to the computer. The display and storage are real-time. For reasons of stability and cost, the current use of the capture card is no longer available in the market. many